https://www.socialeurope.eu/the-rule-of-law-a-simple-phrase-with-exacting-demands
https://www.aldeparty.eu/news/reynders-rule-law-must-be-upheld-even-times-crisis
https://ecipe.org/wp-content/uploads/2019/03/ECI_19_OccasionalPaper_Competition_01_2019-1.pdf
https://www.project-syndicate.org/commentary/german-constitutional-court-ecb-ruling-may-threaten-euro-by-katharina-pistor-2020-05